Design Optimization of Terahertz Near-Field Detectors

O. Mitrofanov; R. Harel; M. Lee; J. W.P. Hsu; J. D. Wynn; J. Federici

Design Optimization of Terahertz Near-Field Detectors

O. Mitrofanov, R. Harel, M. Lee, J. W.P. Hsu, J. D. Wynn, J. Federici

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Spatial resolution of the near-field imaging technique with Terahertz pulses is mainly limited by strong signal attenuation in the aperture of the probe. We demonstrate that probe sensitivity can be significantly improved by placing a detecting element into the near-field zone of the probe aperture. In this case the evanescent modes of the field transmitted through the aperture contribute to the detected signal. Electric field is experimentally measured in the near-field zone of a subwavelength aperture. Numerical calculations based on a simple two-dimensional model are used to analyze effects of the probe geometry.

Original language	English (US)
Title of host publication	Ultrafast Electronics and Optoelectronics, UEO 2001
Publisher	Optica Publishing Group (formerly OSA)
ISBN (Electronic)	1557526591
State	Published - 2001
Event	Ultrafast Electronics and Optoelectronics, UEO 2001 - Lake Tahoe, United States Duration: Jan 10 2001 → …

Publication series

Name	Optics InfoBase Conference Papers

Conference

Conference	Ultrafast Electronics and Optoelectronics, UEO 2001
Country/Territory	United States
City	Lake Tahoe
Period	1/10/01 → …

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Mechanics of Materials

Cite this

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title = "Design Optimization of Terahertz Near-Field Detectors",

abstract = "Spatial resolution of the near-field imaging technique with Terahertz pulses is mainly limited by strong signal attenuation in the aperture of the probe. We demonstrate that probe sensitivity can be significantly improved by placing a detecting element into the near-field zone of the probe aperture. In this case the evanescent modes of the field transmitted through the aperture contribute to the detected signal. Electric field is experimentally measured in the near-field zone of a subwavelength aperture. Numerical calculations based on a simple two-dimensional model are used to analyze effects of the probe geometry.",

author = "O. Mitrofanov and R. Harel and M. Lee and Hsu, {J. W.P.} and Wynn, {J. D.} and J. Federici",

year = "2001",

language = "English (US)",

series = "Optics InfoBase Conference Papers",

publisher = "Optica Publishing Group (formerly OSA)",

booktitle = "Ultrafast Electronics and Optoelectronics, UEO 2001",

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T1 - Design Optimization of Terahertz Near-Field Detectors

AU - Mitrofanov, O.

AU - Harel, R.

AU - Lee, M.

AU - Hsu, J. W.P.

AU - Wynn, J. D.

AU - Federici, J.

PY - 2001

Y1 - 2001

N2 - Spatial resolution of the near-field imaging technique with Terahertz pulses is mainly limited by strong signal attenuation in the aperture of the probe. We demonstrate that probe sensitivity can be significantly improved by placing a detecting element into the near-field zone of the probe aperture. In this case the evanescent modes of the field transmitted through the aperture contribute to the detected signal. Electric field is experimentally measured in the near-field zone of a subwavelength aperture. Numerical calculations based on a simple two-dimensional model are used to analyze effects of the probe geometry.

AB - Spatial resolution of the near-field imaging technique with Terahertz pulses is mainly limited by strong signal attenuation in the aperture of the probe. We demonstrate that probe sensitivity can be significantly improved by placing a detecting element into the near-field zone of the probe aperture. In this case the evanescent modes of the field transmitted through the aperture contribute to the detected signal. Electric field is experimentally measured in the near-field zone of a subwavelength aperture. Numerical calculations based on a simple two-dimensional model are used to analyze effects of the probe geometry.

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M3 - Conference contribution

AN - SCOPUS:85135417865

T3 - Optics InfoBase Conference Papers

BT - Ultrafast Electronics and Optoelectronics, UEO 2001

PB - Optica Publishing Group (formerly OSA)

T2 - Ultrafast Electronics and Optoelectronics, UEO 2001

Y2 - 10 January 2001

ER -

Design Optimization of Terahertz Near-Field Detectors

Abstract

Publication series

Conference

All Science Journal Classification (ASJC) codes

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